How to Review an Analytical Report

How to read HPLC purity and mass-spectrometry identity documentation and understand report scope and redactions.

Start with the scope

A Certificate of Analysis or analytical report is only as broad as the work it documents. Pepta Labs represents independent third-party HPLC purity analysis and mass-spectrometry identity confirmation. It does not represent sterility, endotoxin or LAL, potency, pharmaceutical-grade, cGMP release, or vial fill-quantity testing.

Review the HPLC result

HPLC separates components in the analyzed sample. The reported purity percentage should be read with the method and chromatogram when those fields are present. HPLC area percentage does not, by itself, establish identity, quantity in a vial, sterility, or absence of all possible contaminants.

Review the mass-spectrometry result

Mass spectrometry compares an observed mass with the expected molecular mass. It supports identity confirmation for the analyzed sample, but it is not a substitute for every other analytical or quality test.

Understand the client field and redactions

Products are sourced through a cooperative purchasing arrangement. The purchasing group commissions testing, so the report may name the group or source as the client rather than Pepta Labs. Supplier-identifying fields are redacted before sharing.

Request the report

Reports are available by email request only. Email support@peptalabs.com; there is no report-download button on product pages.